Remove IE6 code from Media

Change-Id: I1dea05ddb57dce1c392bfd3c6896de48e5c9aae9
Make System.arraycopy not perform native copy when length == 0

Change-Id: Ibb4af61d07184b0f625a74d22fd76490e7ea5caf
Merge remote-tracking branch 'upstream/master'